Introduction and expansion of the SARS-CoV-2 B.1.1.7 variant and reinfections in Qatar: A nationally representative cohort study

ConclusionsIn this study, we observed that introduction of B.1.1.7 into a na ïve population can create a major epidemic wave, but natural immunity in those previously infected was strongly associated with limited incidence of reinfection by B.1.1.7 or other variants.
Source: PLoS Medicine - Category: Internal Medicine Authors: Source Type: research